CN107588002A - A kind of Twin-screw vacuum pump of low noise - Google Patents
A kind of Twin-screw vacuum pump of low noise Download PDFInfo
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- CN107588002A CN107588002A CN201710957747.XA CN201710957747A CN107588002A CN 107588002 A CN107588002 A CN 107588002A CN 201710957747 A CN201710957747 A CN 201710957747A CN 107588002 A CN107588002 A CN 107588002A
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- drive screw
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Abstract
The present invention relates to a kind of Twin-screw vacuum pump of low noise.The device includes the pump housing and drives the motor of pump housing motion, the pump housing includes pump case, the drive screw being arranged in pump case and the driven screw being engaged with drive screw, motor output shaft is connected through shaft coupling and drive screw, pump case one end offers air entry, the other end offers exhaust outlet, pump case side is connected with nearside tank, drive screw and driven screw are each extended in the inner chamber of nearside tank, driving gear is connected with the drive screw of inner chamber, the driven gear engaged with driving gear is connected with the driven screw of inner chamber, the exocoel of semi-surrounding inner chamber is provided with the outside of the inner chamber of nearside tank, exocoel and pump case internal switching.Because exocoel and pump case are connected, drive screw and driven screw by while being vacuumized in pump case by exocoel vacuum state, the noise sent when driving gear engages with driven gear is difficult to the exocoel through vacuum, therefore exocoel effectively reduces the propagation of noise.
Description
Technical field
The present invention relates to Twin-screw vacuum pump technical field, more particularly to a kind of Twin-screw vacuum pump of low noise.
Background technology
A kind of patent of low noise screw vacuum pump, its Application No. are disclosed in existing Chinese patent database：
201521060792.8 the applying date is：2015.12.17 Authorization Notice No.：CN205190212U, authorized announcement date：
2016.04.27, the device includes pump case, one end connection casing of the pump case, before the both ends of the pump case are respectively
Lid end and bonnet end, are correspondingly arranged protecgulum, bonnet on the protecgulum end, bonnet end, between protecgulum and the protecgulum end and described
Be respectively provided with sealing ring, it is characterised in that driving screw rod, driven screw, master are set in the pump case between bonnet and Hou Gai ends
Moving gear, driven gear, power rotor bearing and driven rotor bearing, the driving screw rod and driven screw are mutual by gear
Engagement, one end connection driving gear of the driving screw rod, one end connection driven gear of the driven screw, the driving tooth
Wheel is meshed with driven gear, and the front end of the driving screw rod penetrates power rotor bearing, and the rear end of the driving screw rod passes through
Motor of the bonnet connection in the casing, the front end of the driven screw penetrate driven rotor bearing, and the is provided with the casing
One muffler, the pump case is interior to be provided with the second muffler.It is disadvantageous in that：Because the noise of Twin-screw vacuum pump is main
From a pair of pitch wheels, therefore the first muffler being arranged in file disclosed in above-mentioned patent in casing and set
Noise caused by vavuum pump can not effectively be eliminated by putting the second muffler in pump case.
The content of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, the propagation that can not effectively abate the noise, there is provided one
Kind can effectively mitigate the Twin-screw vacuum pump of noise transmission.
In order to realize the purpose of foregoing invention, the technical solution used in the present invention：
A kind of Twin-screw vacuum pump of low noise, including the pump housing and driving the pump housing motion motor, the pump housing include pump case,
The drive screw being arranged in pump case and the driven screw being engaged with drive screw, the output shaft of the motor is through shaft coupling
It is connected with drive screw, described pump case one end offers air entry, and the other end offers exhaust outlet, the side of the pump case
Nearside tank is connected with, the drive screw and driven screw are each extended in the inner chamber of nearside tank, the drive screw positioned at inner chamber
On be connected with driving gear, the driven gear engaged with driving gear, the left oil are connected with the driven screw of inner chamber
The exocoel of semi-surrounding inner chamber, the exocoel and pump case internal switching are provided with the outside of the inner chamber of case.
During present invention work, air entry is connected with external device, and electrical power rotates, and electrical power drives while rotation
Drive screw turns, driven gear rotates while the driving gear in drive screw rotates, and driven screw rotates, drive screw
Air in the external device and pump case that will be connected with air entry is engaged with driven screw to extract out, while by the air of outer intracavitary
Discharge, by vacuum state in exocoel, pump case, because exocoel is vacuum state, driving gear is engaged with driven gear and sent
Noise be difficult to the exocoel for being then passed through vacuum.
Compared with prior art, beneficial effects of the present invention are：Because exocoel and pump case are connected, drive screw with it is driven
Screw rod by while being vacuumized in pump case by exocoel vacuum state, the noise sent when driving gear engages with driven gear
It is difficult to the exocoel through vacuum, therefore exocoel effectively reduces the propagation of noise.
When exocoel does not vacuumize also, noise outflow is reduced, described outer intracavitary is filled with sound insulation material, described sound insulation
Material includes mineral wool, mineral wool or latex block.
In order to lubricate driving gear and driven gear, mitigate driving gear and worn with driven gear, reduce the generation of noise,
Weaken the propagation of noise simultaneously, the interior intracavitary contains the fluid of submergence driving gear and driven gear.
Radiated for the ease of the pump housing, mitigate the abrasion of drive screw and driven screw, it is described so as to extend the life-span of the pump housing
The opposite side of pump case is connected with offside tank, and the drive screw passes through offside tank, and the driven screw other end is immersed in offside tank.
Further, fan blade is connected with the drive screw on the outside of offside tank, described fan blade is used for offside tank, pump
The radiating of shell.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein, 1 pump housing, 101 pump cases, 102 drive screws, 103 driven screws, 2 motors, 201 output shafts, 3 shaft couplings, 4
Nearside tank, 401 inner chambers, 402 driving gears, 403 driven gears, 404 exocoels, 5 offside tanks, 6 fan blades.
Embodiment
The present invention is further described with reference to specific embodiment：
As described in Figure 1, a kind of Twin-screw vacuum pump of low noise, including the motor 2 that the pump housing 1 and the driving pump housing 1 move, the pump housing
1 includes pump case 101, the drive screw 102 being arranged in pump case 101 and the driven screw being engaged with drive screw 102
103, the output shaft 201 of motor 2 is connected through shaft coupling 3 and drive screw 102, and the one end of pump case 101 offers air entry, separately
One end offers exhaust outlet, and the side of pump case 101 is connected with nearside tank 4, and drive screw 102 and driven screw 103 each extend to
In the inner chamber 401 of nearside tank 4, driving gear 402 is connected with the drive screw 102 of inner chamber 401, positioned at inner chamber 401
The driven gear 403 engaged with driving gear 402 is connected with driven screw 103, in order to lubricate driving gear 402 and driven tooth
Wheel 403, mitigate driving gear 402 and worn with driven gear 403, reduce the generation of noise, while weaken the propagation of noise, inner chamber
The fluid of submergence driving gear 402 and driven gear 403 is contained in 401, the outside of inner chamber 401 of nearside tank 4 is provided with semi-surrounding
The exocoel 404 of inner chamber 401, exocoel 404 and the internal switching of pump case 101, when exocoel 404 does not vacuumize also, noise outflow is reduced,
Sound insulation material is filled with exocoel 404, sound insulation material includes mineral wool, mineral wool or latex block, radiates, subtract for the ease of the pump housing 1
Light drive screw 102 and the abrasion of driven screw 103, so as to extend the life-span of the pump housing 1, the opposite side of pump case 101 is connected with the right side
Fuel tank 5, drive screw 102 pass through offside tank 5, and the other end of driven screw 103 is immersed in offside tank 5, further, positioned at the right side
Fan blade 6 is connected with the drive screw 102 in the outside of fuel tank 5, fan blade 6 is used for the radiating of offside tank 5, pump case 101.
During work, air entry is connected with external device, and motor 2, which is powered, to be rotated, and motor 2, which is powered, drives driving while rotation
Screw rod 102 rotates, and driven gear 403 rotates while the driving gear 402 in drive screw 102 rotates, 103 turns of driven screw
Dynamic, drive screw 102 is engaged with driven screw 103 and takes out the air in the external device being connected with air entry and pump case 101
Go out, while the air in exocoel 404 is discharged, by vacuum state in exocoel 404, pump case 101, because exocoel 404 is true
Dummy status, driving gear 402 engage the exocoel 404 that the noise sent is difficult to be then passed through vacuum, while right oil with driven gear 403
Case 5 absorbs the heat of the pump housing 1, drives fan blade 6 to rotate while drive screw 102 rotates, and fan blade 6 is by offside tank 5, pump case 101
Heat be quickly discharged in air.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to which performing creative labour can makes one to some of which technical characteristic
A little to replace and deform, these are replaced and deformation is within the scope of the present invention.
Claims (5)
1. a kind of Twin-screw vacuum pump of low noise, including the pump housing and the motor of driving pump housing motion, the pump housing include pump
Shell, the drive screw being arranged in pump case and the driven screw being engaged with drive screw, the output shaft of the motor is through connection
Axle device is connected with drive screw, and described pump case one end offers air entry, and the other end offers exhaust outlet, and its feature exists
In：The side of the pump case is connected with nearside tank, and the drive screw and driven screw are each extended in the inner chamber of nearside tank, position
In being connected with driving gear in the drive screw of inner chamber, be connected with the driven screw of inner chamber engaged with driving gear from
Moving gear, the inner chamber outside of the nearside tank are provided with the exocoel of semi-surrounding inner chamber, the exocoel and pump case internal switching.
A kind of 2. Twin-screw vacuum pump of low noise according to claim 1, it is characterised in that：Described outer intracavitary filling
There is sound insulation material, described sound insulation material includes mineral wool, mineral wool or latex block.
A kind of 3. Twin-screw vacuum pump of low noise according to claim 2, it is characterised in that：The interior intracavitary has contained
Submerge the fluid of driving gear and driven gear.
A kind of 4. Twin-screw vacuum pump of low noise according to any claim in claim 1-3, it is characterised in that：
The opposite side of the pump case is connected with offside tank, and the drive screw passes through offside tank, and the driven screw other end is immersed in right oil
In case.
A kind of 5. Twin-screw vacuum pump of low noise according to claim 4, it is characterised in that：On the outside of offside tank
Fan blade is connected with drive screw, described fan blade is used for the radiating of offside tank, pump case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710957747.XA CN107588002A (en) | 2017-10-16 | 2017-10-16 | A kind of Twin-screw vacuum pump of low noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710957747.XA CN107588002A (en) | 2017-10-16 | 2017-10-16 | A kind of Twin-screw vacuum pump of low noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107588002A true CN107588002A (en) | 2018-01-16 |
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ID=61052408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710957747.XA Pending CN107588002A (en) | 2017-10-16 | 2017-10-16 | A kind of Twin-screw vacuum pump of low noise |
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| Country | Link |
|---|---|
| CN (1) | CN107588002A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435482A (en) * | 2007-11-15 | 2009-05-20 | 现代自动车株式会社 | Balance shaft module equipped with oil pump |
| CN105952636A (en) * | 2016-05-05 | 2016-09-21 | 扬州大学 | Novel self-lubricating and supporting type variable-volume two-screw pump |
| CN106089708A (en) * | 2016-07-29 | 2016-11-09 | 扬州日上真空设备有限公司 | Composite double screw vacuum pump |
| CN107191381A (en) * | 2017-07-31 | 2017-09-22 | 广东美芝制冷设备有限公司 | Double-deck compressor and air conditioner |
| CN207278507U (en) * | 2017-10-16 | 2018-04-27 | 扬州日上真空设备有限公司 | A kind of Twin-screw vacuum pump of low noise |
-
2017
- 2017-10-16 CN CN201710957747.XA patent/CN107588002A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435482A (en) * | 2007-11-15 | 2009-05-20 | 现代自动车株式会社 | Balance shaft module equipped with oil pump |
| CN105952636A (en) * | 2016-05-05 | 2016-09-21 | 扬州大学 | Novel self-lubricating and supporting type variable-volume two-screw pump |
| CN106089708A (en) * | 2016-07-29 | 2016-11-09 | 扬州日上真空设备有限公司 | Composite double screw vacuum pump |
| CN107191381A (en) * | 2017-07-31 | 2017-09-22 | 广东美芝制冷设备有限公司 | Double-deck compressor and air conditioner |
| CN207278507U (en) * | 2017-10-16 | 2018-04-27 | 扬州日上真空设备有限公司 | A kind of Twin-screw vacuum pump of low noise |
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